Wrench.



31, l Uvwl .Traven Screw. Thread' Non s Wrenches, Sliding Adjustments,

/ Patented July x, usb2. J. c. nAvlsoN. WRENCH.

I Apphtion tiled Nov. 21. IUUI i (No Model.)

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JOHN o. DAvIsON, or rnmNun f..='. 'i:,'-.AnYLAND, AssGNO-n. OF ONE-HALF To o. w. n'vLAND, or nnIENDsvILLE, MARYLAND.

WRENCH.

SPECIFICATEON forming part of Letters Patent No. 703,898, dated July 1, 1902. Application filed November 21,1901. Serial No. 83,138. (No model.)

T @ZZ lvl/L07 1315 maf?! @0W/067%: ing connected to turn therewith a beveled Bei known that I, JOHN C, DAvIsoN, a citipinion A14.. The worm wheel engages the zen of the United States, residing at Friendsworm-teeth of the shank and may be cast inville, in the county of Garrett and State of tegral with the beveled pinion, but, as shown, 55 Maryland,have invented certain newand useis provided with lugs 15, which project beful Improvements in Wrenches; and I do detween the teeth of the pinion, and thus lock claro the following to be a full, clear, and exthe pinion to turn with the worm-wheel. act description of the invention, such as will 16 denotes a fast screw arranged at an angle enable others skilled in the art to which it apto the shaft and located in the opening in the 6o xo pertains to make and use the same. handle and having its upper end swiveled in The invention relates to wrenches. a seat 17, formed in the shaft, and its lower The object of the invention is to provide a end swiveled in a block 18, screwed to the wrench which shall be simple of construccross-piece 5 of the handle, whereby said tion, durable in use, comparatively inexpenscrew may be removed when desired. The 65 sive of production, and one which may be upper end of the screw is preferably formed easily and quickly adjusted to fit the work polygonal, as shown at 19, to receive a bevbein g operated upon. eled gear 20, which meshes with the beveled l With these and other objects in view the pinion aforesaid and is held to said screw to invention consists of certain novel features rotate therewith. 21 denotes anut mounted 7o 2o of construction, combination, and arrangeto slide upon said screw and by means of ment of parts, which will be hereinafter more which said screw is rotated to rotate its pinfully described, and particularly pointed out ion and transmit the movement therefrom to in the appended claim. the pinion and worm carried by the shaft.

In the accompanying drawings, Figure lis The rotation of the worm moves the movable 75 z 5 aside elevation of my improved wrench. Fig. jaw toward or away from the fixed jaw, ac- 2 is a longitudinal sectional View through the eordingto the direction of movement of the head of the Wrench, thejaws, the worm-wheel, nut, so that I am enabled to obtain a quick its shaft, and the pinion connected to the adjustment of the wrench to the work being worm-wheel. Fig. 3 is a sectional view taken operated upon. 8o 3o at right angles to Fig. 2, and Fig. t is a ver- In the drawings I have shown the jaws of tical sectional view through the nut and the the wrench constructed to engage nuts. It swiveled screw. is evident that this construction may be modi- Iteferring to the drawings, 1 denotes the ied and the jaws shaped to grasp a pipe or handle of the wrench, 2 the head, and 3 the other similar object. 85 fixed jaw. The handle is formed with an From the foregoing description, taken in opening et and with a cross-piece 5, and the connection with the accompanying drawings, head is formed with a transverse opening 6, the construction, mode of operation, and adintersecting the opening i, and provided with vantages of my invention will be readily unlongitudinal guide-grooves 7 in its side walls. derstood without requiring a more extended 9o 4o 8 denotes a sliding jaw having an angular explanation.

shank 0, which is formed with longitudinal Variouschanges in the form,proportion,and supporting guide-ribs 10, which slide in said details of construction may be made within grooves and support the shank the proper disthe scope of the invention without departing tance from the lower wall of the longitudinal from the spirit or sacrificing any of the ad- 95 opening in the head of the wrench and also vantages thereof.

prevent the outward tilting movement of the Having thus described my invention, what movable jaw. The lower edge of the shank I claim, and desire to secure by Letters Iatis formed or provided with worm-teeth 1l. ent, is

12 denotes a shaft which is secured to the In a wrench of the character described, the roo 5o handle and extends across the opening and combination with the handle provided with upon whichis journaled aworm-wheel13, havan opening and with a cross-piece and formed at its outer end with a head and with a fixed and engaging the beveled pinion, and a nnt jaw, said head being provided with a longimounted upon said screw to rotate the same tudinal opening the side walls of which are and thereby slide the movable jaw toward x 5 formed with guide-grooves, of amovable jaw and away from the fixed jaw, substan tiallv 5 sliding upon said head andhaving an angular as set forth. shank to engage the aperture in the head, In testimony whereof I have hereunto set said shankbeing provided with ribs to engage my hand in presence of two subscribin g witsaid guide-grooves and with worm-teeth on nesses.

` i,ts lower edge, a shaft, a worm-wheel and JOIIN C. DAVISON.

lo beegeled pinion loosely mounted upon said \\itnesses:

Shaft'- aud locked to rotate in unison, a swiv- C. V. GUARD,

eled screw', a beveled gear fixed to said screw l, BLANCHE GUARD. 

